George peeples



G. PEBPLES.

1 NSULATBD PIPE GDUPLING.

Patented Peb. 27, 1894:.`

l. M m a l Wm (N0 Model.)

NTTED STATES PATENT otros,

GEORGE PEEPLES, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE- HALF TO THE THAOKARA MANUFACTURING COMPANY, OF SAME PLACE.

iNSULATED PIPE-COUPLING.

SPECIFICATION forming part of Letters Patent No. 515,716, dated February 2'?, 1894.

Applioativn filed June 5, 1893. Serial No. 476,579 (No model.)

:To @ZZ whom t may concern:

Be it known that I, GEORGE Pnnrnns, a citizen of the United States, residing at Philadelphia,in the county of Philadelphia and 5 State of Pennsylvania, have invented certain new and useful Improvements in Insulated Pipe-Couplings, of which the following is a specification, reference being had therein to the accompanying drawings.

:o The object of my invention is to provide an improved form of insulated pipe coupling for combined gas and electric fixtures, of a construction which will at all times and under all conditions be perfectly insulated, as more x5 fully described hereinafter..

In the accompanying drawings:-Figure 1, is a sectional elevation, on an enlarged scale, of an insulated pipe coupling constructed in accordance with my invention. Fig. 2, represents a detached perspective view of the various parts of the same, and Fig. 3, is a view of a modification.

The coupling forming the subject ot my invention is so constructed as to be capable z 5 of withstanding such strains as may be necessary in Straightening the fixture after it is hung in position, without danger of causing the leakage of gas, and the parts are so arranged that moisture due to the deposit of gas tar cannot make contact between such insulated parts, while its small diameter permits its being caught at any point without injuring the coupling.

Referring to the drawings, A, represents the upper section of the coupling, having a threaded opening enfer the admission of the supply pipe, and a threaded neck a', through which is formed a passage for the gas. The lower sect-ion B is provided with a threaded opening b, for the admission of the vertical pipe of the xture, and between the neck a and the section B is a ring c, of mica, which forms a perfect .insulation between the two parts. In order to prevent the upper'end of the fixture from pressing against the mica ring c and injuring the same, a shoulder d is formed at the upper end of the threaded opening b and forms a stop against which the upper end of the conducting pipe may press 5o and form a gas tight joint. The lower section B is in cup like form, and in its threaded inner wall is screwed a ring e, while to the lower threaded periphery of the neck a', is screwed a ring e, of adiameter somewhat less than the internal diameter of the cup shaped 5 5 portion of the lower section B.

The various parts are insulated from each other by mica and rubber or other insulating material, so disposed as to perfectly prevent all danger of accidental contact due either to 6o the straining of the joint or the deposit of gas tar. Between the ringe and the neck a is a rubber ring g, and between the ringf and threaded inner portion d' of the lower section is a rubber ring h. The rings c andf are insalated by a ring t', of mica or other suitable material and a similar ring h', of mica, is placed between the ring e and upper section A. As afurther precaution a ring le, of hard rubber is placed between the upper portion 7o of the lower section and the mica ring h.

In manufacturing the couplings for the trade, the opening a for the gas supply pipe is made to tit a pipe of standard size, but if necessary the diameteriof the opening may be increased, the external diameter of the upper section being made suiiieiently large to permit the drilling of an opening for any ordinary sized supply pipe.

In the modification illustratedin Fig. 3 I 8o have shown an arrangementand construction of parts which may be employed, if it be desired to replace the rubber insulation by porcelain or similar material. In this case the section A is recessed for the reception of AS5 the porcelain ring 7s and the ring 72,', of mica is placed below it so that in screwing the parts together there will be less danger of cracking or breaking the porcelain rings as the mica will yield somewhat to the pressure. go The other rubber rings may also be replaced by porcelain, if desired, as illustrated in this gure.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. The combination in an insulated coupling, of the upper section, a threaded neck thereon, a ring adapted to such threaded neck, the lower section, a threaded ring adapted roc thereto, and insulating material provided between the meeting faces of the rings, and the meeting faces of the rings with the sections, substantially as specified.

2. The combination of the section A, having a threaded neck a', a ring f, adapted thereto, the lower section B, having an internally threaded portion d, a ring e adapted thereto, insulating rings g and h, located between the rings and the adjacent faces of the opposite sections, and insulating rings c, z', and h 1ocated between the rings e and f and the sections A and B, substantially as specified.

3. The combination of the section A, having a threaded neck a', a ring f, secured thereto, thelower section B, the ring e secured thereto, and rings of insulating material, c, g, h, h', t, and 7c, disposed between the rings e and f, and the sections to which they are secured, sub stantially as and in the manner set forth.

In testimony whereof I afx my signature 1n the presence of two witnesses.

GEORGE PEEPLES.

Witnesses:

JOHN C. GALLEN,V GEO. W. ROWE. 

